Breakdown of Fourier’s Law in Nanotube Thermal Conductors
Journal
Physical Review Letters
Journal Volume
101
Journal Issue
7
Pages
075903-1 - 075903-4
Date Issued
2008
Author(s)
Abstract
We present experimental evidence that the room temperature thermal conductivity (kappa) of individual multiwalled carbon and boron-nitride nanotubes does not obey Fourier's empirical law of thermal conduction. Because of isotopic disorder, kappa's of carbon nanotubes and boron-nitride nanotubes show different length dependence behavior. Moreover, for these systems we find that Fourier's law is violated even when the phonon mean free path is much shorter than the sample length.
Publisher
American Physical Society
Type
journal article